Patents Assigned to RTX Corporation
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Patent number: 11927132Abstract: A propulsion system for an aircraft includes a core engine that includes a core flow path where air is compressed in a compressor section, communicated to a combustor section, mixed with a hydrogen based fuel and ignited to generate a core gas flow that is expanded through a turbine section. The propulsion system includes a hydrogen fuel system that is configured to supply hydrogen fuel to the combustor through a fuel flow path, a condenser that is arranged along the core flow path and configured to condense water within the core gas flow, and a separator that includes an inlet, a primary water outlet and an exit that includes a plurality of exit guide vanes for straightening the core gas flow that proceeds through the exit. The exit guide vanes include a secondary water outlet for removing condensed water in the core gas flow that proceeds through the exit.Type: GrantFiled: February 10, 2023Date of Patent: March 12, 2024Assignee: RTX CORPORATIONInventors: Neil J. Terwilliger, Abbas A. Alahyari
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Patent number: 11927140Abstract: A gas turbine engine includes a propulsor delivering air into a core engine inward of an outer core panel. The core engine has a compressor section, a combustor and a turbine section. A compressor bleed system includes a bleed valve on a conduit communicating with compressed air from the compressor section. The bleed valve is configured to deliver air into a chamber where it can flow outwardly of the core engine at an exit location radially inward of the outer core panel.Type: GrantFiled: April 21, 2023Date of Patent: March 12, 2024Assignee: RTX CorporationInventors: Murat Yazici, Marc J. Muldoon
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Patent number: 11927138Abstract: A gas turbine engine includes a fan section that includes a fan drive shaft. A star gear system for driving the fan section has a carrier mounted to a static structure to prevent the carrier from rotating. A ring gear is attached to a ring gear attachment point on the fan drive shaft. A first fan section support bearing supports a fan drive shaft and is mounted forward of the ring gear attachment point. A second fan section bearing supports the fan drive shaft and is mounted aft of the ring gear attachment point on the fan drive shaft. An outer race of the second fan section bearing is fixed relative to an engine static structure.Type: GrantFiled: June 17, 2021Date of Patent: March 12, 2024Assignee: RTX CorporationInventor: William G. Sheridan
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Patent number: 11928811Abstract: A method for determining structural vibration mode characteristics includes preparing a digital image correlation (DIC) dataset for the component, applying a dynamic mode decomposition (DMD) technique to the DIC dataset to determine a plurality of DMD modes, selecting at least one dominant DMD mode from the plurality of DMD modes, classifying each of the at least one selected dominant DMD mode as a standing wave or a traveling wave, and determining structural vibration mode characteristics of the component by extracting the structural vibration mode characteristics from each of the at least one selected dominant DMD mode having a standing wave classification.Type: GrantFiled: March 30, 2021Date of Patent: March 12, 2024Assignee: RTX CORPORATIONInventors: Amit Surana, Sudarshan N. Koushik, Kenji Homma
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Patent number: 11927136Abstract: A gas turbine engine includes a core engine, including a compressor section, a combustor section and a turbine section positioned within a core flow path of the gas turbine engine; a bypass splitter positioned radially outward of the core engine and configured to house the compressor section, the combustor section and the turbine section; a bypass duct positioned radially outward of the bypass splitter; a fan section positioned axially upstream of the compressor section, the fan section including a fan and an inlet cone positioned upstream of the fan; an inlet duct configured to house the fan section; an inlet precooler disposed within the inlet duct; and a heat exchange system configured to provide a cooling fluid to the inlet precooler.Type: GrantFiled: May 12, 2022Date of Patent: March 12, 2024Assignee: RTX CORPORATIONInventor: Steven W. Burd
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Patent number: 11927348Abstract: An aerodynamic component of a gas turbine engine is provided and is fittable to a shell having a shell shape. The aerodynamic component includes a body having a component shape initially deviating from the shell shape prior to an assembly operation in which the aerodynamic component is to be fit to the shell. Deviation of the component shape from the shell shape aids in an establishment of a final desired shape of the aerodynamic component following the assembly operation.Type: GrantFiled: November 24, 2021Date of Patent: March 12, 2024Assignee: RTX CORPORATIONInventors: Steven D. Porter, Jon E. Sobanski
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Patent number: 11929818Abstract: According to an aspect, a waveguide system includes a first node, a second node, and a double-ridge waveguide. The double-ridge waveguide includes a metallic shell surrounding a waveguide core that forms a communication and radio frequency power transmission path in an aerospace environment. The first node is configured to propagate at least one communication channel and a radio frequency power transmission through the waveguide core to the second node during operation of the waveguide system in the aerospace environment.Type: GrantFiled: October 8, 2021Date of Patent: March 12, 2024Assignee: RTX CORPORATIONInventors: Jonathan Gilson, Joseph V. Mantese, Coy Bruce Wood, Eric J. Heims, Gurkan Gok, Joseph Zacchio
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Patent number: 11926109Abstract: A method of manufacturing a composite vessel assembly (20) includes the steps of filling a first chamber defined by a first liner (28,30,32) with a first granulated material (96) through a first orifice (98) in the first liner. A vacuum is then applied to the first chamber, and the first orifice is plugged. The first liner may then be enveloped with a first layer (84) for structural rigidity followed by relief of the vacuum.Type: GrantFiled: April 22, 2016Date of Patent: March 12, 2024Assignee: RTX CORPORATIONInventors: Andrzej Ernest Kuczek, Ellen Y. Sun, Wenping Zhao
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Patent number: 11927113Abstract: A fan blade comprises interleaved plies, where interleaving comprises distributing wide plies within narrow plies and short plies within long plies in the fan blade; wherein the interleaving is defined as an actual intersection of a plurality of plies of different variable dimensions that extend in the chordwise direction with another plurality of plies of different variable dimensions that extend in the spanwise direction such that their respective longitudinal axes intersect with one another at angles of 5 to 175 degrees.Type: GrantFiled: August 5, 2022Date of Patent: March 12, 2024Assignee: RTX CORPORATIONInventors: Xuetao Li, Peter Finnigan, Nicholas D. Stilin
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Patent number: 11927106Abstract: A gear reduction reduces a speed of a fan rotor relative to a speed of a fan drive turbine. A fan case surrounds the fan rotor. A core engine has a compressor section and includes a low pressure compressor. The fan rotor delivers air into a bypass duct defined between the fan case and the core engine. A rigid connection between the fan case and the core engine includes a plurality of aft connecting members rigidly connected to the fan case, and to the core engine. A plurality of fan exit guide vanes are rigidly connected to the fan case, with the fan exit guide vanes including structural fan exit guide vanes which are rigidly connected to the core engine, and non-structural fan exit guide vanes, and the non-structural fan exit guide vanes being provided with an acoustic feature to reduce noise.Type: GrantFiled: December 23, 2022Date of Patent: March 12, 2024Assignee: RTX CorporationInventors: Anthony R. Bifulco, David A. Topol
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Publication number: 20240077031Abstract: A split ring seal has: a first circumferential end and a second circumferential end; an inner diameter surface and an outer diameter surface; a first axial end face and a second axial end face. The outer diameter surface has a sealing surface. The first axial end face has: a first section; a second section outboard of the first section; and an axial protrusion between the first section and the second section The second axial end face has: a first sealing surface; a second sealing surface radially outboard of the first sealing surface; a circumferential channel between the first surface and the second sealing surface; and a plurality of channels extending radially outward from the circumferential channel.Type: ApplicationFiled: September 5, 2023Publication date: March 7, 2024Applicant: RTX CorporationInventor: Jonathan L. Miller
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Publication number: 20240077028Abstract: A method for operating a rotating detonation engine, having a radially outer wall extending along an axis; a radially inner wall extending along the axis, wherein the radially inner wall is positioned within the radially outer wall to define an annular detonation chamber having an inlet and an outlet, wherein the method includes flowing liquid phase fuel along at least one wall of the radially inner wall and the radially outer wall in a direction from the outlet toward the inlet to cool the at least one wall and heat the liquid fuel to provide a heated liquid fuel; flowing the heated liquid fuel to a mixer at the inlet to reduce pressure of the heated liquid fuel, flash vaporize the heated liquid fuel and mix flash vaporized fuel with oxidant to produce a vaporized fuel-oxidant mixture; and detonating the mixture in the annular detonation chamber.Type: ApplicationFiled: November 9, 2023Publication date: March 7, 2024Applicant: RTX CorporationInventors: Christopher Britton Greene, James M. Donohue, Peter AT Cocks
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Publication number: 20240075522Abstract: A casting method includes: forming a seed, the seed having a first end and a second end, the forming including bending a seed precursor; placing the seed second end in contact or spaced facing relation with a chill plate; contacting the first end with molten material; and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material. The forming further included reducing a thickness of the seed proximate the first end relative to a thickness of the seed proximate the second end.Type: ApplicationFiled: November 6, 2023Publication date: March 7, 2024Applicant: RTX CorporationInventors: Dilip M. Shah, Shiela R. Woodard, Steven J. Bullied, Ryan C. Breneman
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Patent number: 11920495Abstract: An airfoil includes an airfoil wall that has a wishbone-shaped fiber layup structure. The structure includes two arms that merge into a single leg. The single leg includes fiber tows from each of the arms that are interwoven. The single leg forms at least a portion of the trailing edge of the airfoil wall. Each of the arms includes a first section that is distal from the single leg and a second section that is proximal to the single leg. The first section defines a first thickness, the second section defines a second thickness that is greater than the first thickness, and the single leg defines a third thickness that is greater than the second thickness.Type: GrantFiled: January 20, 2023Date of Patent: March 5, 2024Assignee: RTX CORPORATIONInventor: Christian X. Campbell
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Patent number: 11920497Abstract: A ceramic matrix composite includes a plurality of ceramic fibers and an interface coating disposed on the plurality of ceramic fibers. The interface coating includes a carbon-based layer disposed on each ceramic fiber of the plurality of ceramic fibers and a boron-nitride based layer disposed on the first carbon-based layer. The ceramic matrix composite also includes a ceramic matrix surrounding the plurality of ceramic fibers. A ceramic matrix composite and a method of forming a ceramic matrix composite component are also disclosed.Type: GrantFiled: December 3, 2021Date of Patent: March 5, 2024Assignee: RTX CorporationInventors: Olivier H. Sudre, Nitin Garg, John H. Shaw, Kathryn S. Read, Cristal Chan, Mary Colby, Andrew J. Lazur, Tania Bhatia Kashyap
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Patent number: 11920524Abstract: An assembly is provided for a turbine engine with a flowpath. This turbine engine assembly includes a fuel injection system. The fuel injection system includes a first fuel injector and a second fuel injector. The fuel injection system is configured to provide the first fuel injector with first fuel and provide the second fuel injector with second fuel. The first fuel may be or include ammonia. The second fuel is different than the first fuel. The second fuel may be or include hydrogen gas. The first fuel injector is configured to direct the first fuel into the flowpath for combustion. The second fuel injector is configured to direct the second fuel into the flowpath for combustion.Type: GrantFiled: April 15, 2021Date of Patent: March 5, 2024Assignee: RTX CORPORATIONInventors: Lance L. Smith, Timothy S. Snyder, Jeffrey M. Cohen, Peter Cocks, Sean C. Emerson
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Patent number: 11920517Abstract: A turbine engine heat exchanger has an array of heat exchanger plates mounted to an inner case wall for providing heat transfer from a bleed flowpath to a bypass flowpath. Each plate has: first and second faces along the bypass flowpath; a proximal edge mounted to the inner case wall; an inlet along the proximal edge; an outlet along the proximal edge; and a branch segment of the bleed flowpath passing from the inlet to the outlet.Type: GrantFiled: July 25, 2022Date of Patent: March 5, 2024Assignee: RTX CorporationInventors: James F. Wiedenhoefer, Russell J. Bergman, William P. Stillman, Patrick M. Hart
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Patent number: 11920478Abstract: In a method for manufacturing an article, the article has a body having: a first face; and a first bevel surface extending from the first face. A plurality of first channels along the first bevel surface extending from the first face. A ceramic coating is along the inner diameter surface and the first bevel surface. Each of the first channels are machined in the body by plunging a rotating bit into the first surface and drawing the rotating bit down the bevel surface. The coating is thereafter applied.Type: GrantFiled: July 26, 2021Date of Patent: March 5, 2024Assignee: RTX CorporationInventor: Christopher W. Strock
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Patent number: 11920872Abstract: A heat exchanger has arcuate inlet and outlet manifolds and a plurality of tube banks, each tube bank coupling one of the inlet manifold outlets to an associated one of the outlet manifold inlets. Each tube bank partially nests with one or more others of the tube banks and has: a first header coupled to the associated inlet manifold outlet and the associated the outlet manifold inlet; a second header; and a plurality of tube bundles each having a first end coupled to the associated first header and a second end coupled to the associated second header. A flowpath from the each inlet manifold outlet passes sequentially through flowpath legs formed by each of the tube bundles in the associated tube bank to exit the tube bank to the associated outlet manifold inlet.Type: GrantFiled: June 30, 2022Date of Patent: March 5, 2024Assignee: RTX CorporationInventors: Joseph B. Staubach, Amanda Jean Learned Boucher, Jesse M. Chandler
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Patent number: 11920492Abstract: A mounting assembly is provided. The mounting assembly includes a first flange; a second flange; a first asymmetric spacer; a second asymmetric spacer; and a bolt configured to pass through a void of the first asymmetric spacer starting at a first end, through at least one first opening of the first flange, through at least one second opening of the second flange, through a void of the second asymmetric spacer starting at a second end, and to be coupled to a nut, such that, in response to the nut being fastened to the bolt, the bolt bends due to a non-vertical slope of the first asymmetric spacer and a non-vertical slope of the second asymmetric spacer.Type: GrantFiled: March 20, 2023Date of Patent: March 5, 2024Assignee: RTX CORPORATIONInventors: Jason B. Husband, Michael D. Greenberg
